<template>
    <!-- main.js -->
    <div class="table">
        <div class="crumbs">
            <i class="el-icon-tickets"></i>歌单歌曲信息
        </div>
        <div class="container">
            <div class="handle-box">
                <el-button type="primary" size="mini" @click="delAll">批量删除</el-button>
                <el-input prefix-icon="el-icon-search" v-model="select_word" size="mini" placeholder="请输入歌曲名" class="handle-input"></el-input>
                <el-button type="primary" size="mini" @click="centerDialogVisible = true">添加歌曲</el-button>
            </div>
        </div>

        <!----------------------table--------------------->
        <el-table size="mini" border style="width: 100% " height="550" :data="tableData" @selection-change="handleSelectionChange">
            <el-table-column type="selection" width="40">

            </el-table-column>
            <el-table-column prop="name" label="歌手-歌名" align="center"></el-table-column>
            <el-table-column label="操作" width="150" align="center">
                <template slot-scope="scope">
                    <el-button size="mini" type="danger" @click="handleDelete(scope.row.id)">删除</el-button>
                </template>
            </el-table-column>
        </el-table>

        <!----------------------添加模态框--------------------->
        <el-dialog title="添加歌曲" :visible.sync="centerDialogVisible" width="400px" center>
            <el-form :model="registerForm" ref="registerForm" label-width="80px" action="" id="tf">
                <el-form-item prop="singerName" label="歌手名字" size="mini">
                    <el-input v-model="registerForm.singerName" placeholder="歌手名字"></el-input>
                </el-form-item>
                <el-form-item prop="songName" label="歌曲名字" size="mini">
                    <el-input v-model="registerForm.songName" placeholder="歌曲名字"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer">
                <el-button size="mini" @click="centerDialogVisible = false">取消</el-button>
                <el-button size="mini" @click="getSongId">确定</el-button>
            </span>
        </el-dialog>


        <!----------------------删除模态框--------------------->
        <el-dialog title="删除歌曲" :visible.sync="delVisible" width="300px" center>
            <div align="center">
                删除不可恢复，是否确定删除？
            </div>
            <span slot="footer">
                <el-button size="mini" @click="delVisible = false">取消</el-button>
                <el-button size="mini" @click="deleteRow">确定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
    import {mixin} from "../mixins/index";
    import {delListSong, listSongAdd, listSongDetail, songOfSongId, songOfSongName} from '../api/index';

    export default {
        name: "ListSong",
        mixins: [mixin],
        data(){
            return{
                centerDialogVisible: false, //添加弹窗是否显示
                delVisible: false, //删除弹窗是否显示
                registerForm: {     //添加框
                    singerName: '',     //歌手名字
                    songName: ''    //歌曲名字
                },
                tableData: [],
                tempData: [],
                select_word: '',
                idx: -1,     //当前选择项
                muletipleSelection: [], //哪些项已经打钩
                songListId: ''     //歌单id
            }
        },
        watch:{
            //搜索框里面的内容发生变化的时候，搜索结果table列表内容跟着他的内容发生改变
            select_word: function () {
                if(this.select_word === ''){
                    this.tableData = this.tempData;
                }else{
                    this.tableData = [];
                    for(let item of this.tempData){
                        if(item.name.includes(this.select_word)){
                            this.tableData.push(item)
                        }
                    }
                }
            }
        },
        created(){
            //获取前面转过来的歌单id
            this.songListId = this.$route.query.id;
            this.getData();
        },
        methods:{
            //查询所有歌手
            getData(){
                this.tempData = [];
                this.tableData = [];
                listSongDetail(this.songListId).then(res => {
                    for(let item of res){
                        this.getSong(item.songId);
                    }
                });
            },
            //根据歌曲id查询歌曲对象，放到tempData和tableData里面
            getSong(id){
                songOfSongId(id)
                    .then(res => {
                        this.tempData.push(res);
                        this.tableData.push(res);
                    })
                    .catch(err => {
                        console.log(err);
                    });

            },
            //添加歌曲前的左边，获取到歌曲id
            getSongId(){
                let _this = this;
                var songOfName = _this.registerForm.singerName + '-' + _this.registerForm.songName;
                //console.log("****" + songOfName);
                songOfSongName(songOfName)
                    .then(res => {
                        //console.log("*--*" + res[0]);
                        this.addSong(res[0].id);
                    });
            },
            //添加歌曲
            addSong(songId){
                let params = new URLSearchParams();
                params.append("songId", songId);
                params.append('songListId', this.songListId);
                listSongAdd(params)
                    .then(res => {
                        if(res.code === 1){
                            this.getData();
                            mixin.methods.notify("添加成功", "success");
                        } else{
                            mixin.methods.notify("添加失败", "error");
                        }
                    })
                    .catch(err => {
                        console.log(err);
                    });
                this.centerDialogVisible = false;
            },
            //删除一条歌曲
            deleteRow(){
                console.log(this.idx);
                delListSong(this.idx, this.songListId)
                    .then(res => {
                        if(res){
                            this.getData();
                            mixin.methods.notify("删除成功", "success");
                        } else{
                            mixin.methods.notify("删除失败", "error");
                        }
                    })
                    .catch(err => {
                        console.log(err);
                    });
                this.delVisible = false;
            }
        }
    }
</script>

<style scoped>
    .handle-box{
        margin-bottom: 20px;

    }
    .song-img{
        width: 100%;
        height: 80px;
        border-radius: 5px;
        margin-bottom: 5px;
        overflow: hidden;
    }
    .handle-input{
        width: 300px;
        display: inline-block;
        margin: 0 10px;
    }
    .pageination{
        display: flex;
        justify-content: center;

    }
    .play{
        position: absolute;
        z-index: 100;
        width: 80px;
        height: 80px;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        top: 18px;
        left: 15px;
    }
    .icon{
        width: 2em;
        height: 2em;
        color: #D2D8DC;
        fill: currentColor;
        overflow: hidden;
    }
</style>